18100102102 has 4 divisors (see below), whose sum is σ = 27150153156. Its totient is φ = 9050051050.

The previous prime is 18100102099. The next prime is 18100102109. The reversal of 18100102102 is 20120100181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20120100181 = 131 ⋅153588551.

It is a super-2 number, since 2×18100102102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18100102109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4525025524 + ... + 4525025527.

It is an arithmetic number, because the mean of its divisors is an integer number (6787538289).

Almost surely, 2^18100102102 is an apocalyptic number.

18100102102 is a deficient number, since it is larger than the sum of its proper divisors (9050051054).

18100102102 is an equidigital number, since it uses as much as digits as its factorization.

18100102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9050051053.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 18100102102 its reverse (20120100181), we get a palindrome (38220202283).

The spelling of 18100102102 in words is "eighteen billion, one hundred million, one hundred two thousand, one hundred two".